(5)
 Operate the brake pedals until the brake accumulator of the yellow hydraulic system is at zero.

 Subtask 32-43-27-860-051
 B. Aircraft Maintenance Configuration
 (1)
 Disconnect the isolation coupling of the PTU (Ref. TASK 29-23-00-860-001).

 (2)
 Make sure that the Yellow and Green hydraulic systems are de-pressurized (Ref. TASK 29-00-00-864-001).

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 (3) Make sure that the applicable hydraulic reservoir is depressurized (Ref. TASK 29-14-00-614-001).
 Subtask 32-43-27-865-050
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY 4GG M36 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/CTL 3GG M35 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/CTL 1GG M34 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY 2GG M33 121VU HYDRAULIC/PARK BRK/CTL/STBY 71GG N37 121VU HYDRAULIC/PARK BRK/CTL/NORM 70GG N36 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
 Subtask 32-43-27-010-050
 D. Get Access
 (1)
 Put the access platform below the applicable false rear spar at the alternate brake manifold, at zone 571 or 671.

 (2)
 Put a container below the applicable servovalve (2).

 4. Procedure_________
 (Ref. Fig. 401/TASK 32-43-27-991-001)
 Subtask 32-43-27-020-050
 A. Removal of the Alternate Brake Servovalve
 WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
_______
 -FLUSH IT AWAY WITH CLEAN WATER
 -GET MEDICAL AID.
 CAUTION : MAKE SURE THAT THE FLUID DOES NOT STAY ON THE AIRCRAFT
_______ STRUCTURE. IF THE FLUID GETS ON THE AIRCRAFT STRUCTURE, WASH IT OFF IMMEDIATELY WITH SOAP AND WATER.
 (1) Disconnect the electrical connector (1).
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 Alternate Brake Servovalve
 Figure 401/TASK 32-43-27-991-001

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 (2)
 Put blanking caps on the disconnected electrical connectors.

 (3)
 Remove the screws (3) and the applicable servovalve (2). Make sure that the dowel stays with the servovalve (2).

 (4)
 Remove and discard the seals (4) and the rings (5).

 (5)
 Put a cover on the manifold to prevent damage to the interface and to keep it clean.

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 TASK 32-43-27-400-001 Installation of the Alternate Brake Servovalve 40GG(43GG), 41GG(42GG) WARNING : MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING
_______ NOTICES ARE IN POSITION.
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers No specific warning notice No specific access platform 2.5 m (8 ft. 2 in.)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 02-003  F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
 Material No. 11-026  GB DEF-STAN 68-148/1 SOLVENT GENERAL PURPOSE (Ref. 20-31-00) Material No. 19-003 USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
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 C. Expendable Parts -------------------------------------------------------------------------------
FIG.ITEM --------- |DESIGNATION ---------------------------------------- |IPC-CSN------------------------------
4  seals  32-42-48 01 -040
 5  rings  32-42-48 01 -050
　
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